eggcase of the greater argonaut
Refers specifically to the delicate, papery shell-like eggcase produced by the female greater argonaut.
See also: カイダコ
I found an eggcase of a greater argonaut on the beach.
greater argonaut; paper nautilus
Colloquial use for the animal itself (Argonauta argo), though technically the term refers to the eggcase.
The greater argonaut lives in warm seas.
Katakana spelling is common for this biological term; usually written in kana.
Kanji spelling exists but is rarely used; the katakana form is preferred.
The name アオイガイ literally means 'hollyhock shell', from the resemblance of the eggcase to an 葵 (hollyhock) leaf.